#A37519
Closest named color: Bronze (#A87900). oklch(59.4% 0.115 79), rgb(163, 117, 25).
Aa
Black text reads best on this color (5.11:1).
About this color
#A37519 is a medium-dark, moderately saturated brown. In OKLCH its lightness is 59%, its chroma 0.115 and its hue 79°. Its hue sits on the warm side of the wheel. The nearest named color is Bronze (#A87900), ΔE 0.017 away. Black text reads best on it, at 5.11:1.
| Hue family | Browns |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.115) |
| Temperature | warm |
| Nearest name | Bronze (#A87900) |
| Black text | 5.11:1 |
| White text | 4.10:1 |
Values
| HEX | #A37519 |
| RGB | rgb(163, 117, 25) |
| HSL | hsl(40, 73%, 37%) |
| OKLCH | oklch(59.4% 0.115 79) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #A37519 | 4.10:1 | AA large text | Lc -73.5 | Content text, not long reading |
| Black text on #A37519 | 5.11:1 | AA | Lc 36.1 | Non-text elements, placeholder text |
| #A37519 text on white | 4.10:1 | AA large text | Lc 68.0 | Content text, not long reading |
| #A37519 text on black | 5.11:1 | AA | Lc -33.7 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F8F5F0
oklch(97.1% 0.007 80.7)
-
Step 100
100
#F0E9DE
oklch(93.6% 0.017 79.3)
-
Step 200
200
#E5D7C3
oklch(88.5% 0.031 76.9)
-
Step 300
300
#D5BD98
oklch(80.9% 0.057 78.5)
-
Step 400
400
#BF9A5D
oklch(70.7% 0.091 79)
-
Step 500
500 (this color)
#A37519
oklch(59.4% 0.115 79)
-
Step 600
600
#976A00
oklch(55.7% 0.116 79.3)
-
Step 700
700
#7F5800
oklch(49% 0.102 78.8)
-
Step 800
800
#694800
oklch(42.7% 0.089 78.7)
-
Step 900
900
#573C05
oklch(37.7% 0.075 78.8)
-
Step 950
950
#332307
oklch(26.9% 0.048 78)
#A37519 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #877601 | 0.050 |
| Deuteranopia (no green cones) | #92821E | 0.042 |
| Tritanopia (no blue cones) | #B26864 | 0.100 |
| Achromatopsia (no color) | #7D7D7D | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A37519
#A37519
oklch(59.4% 0.115 79)
- #537FC3
#537FC3
oklch(59.5% 0.115 258.8)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #A37519, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Bronze #A87900 ΔE 0.017
- Caramel #AF6F09 ΔE 0.024
- Leather #AC7434 ΔE 0.027
- Golden Brown #B27A01 ΔE 0.031
- Mustard Brown #AC7E04 ΔE 0.031
- Hazel #8E7618 ΔE 0.036
- Clay Brown #B2713D ΔE 0.044
- Brown Orange #B96902 ΔE 0.045
Use #A37519 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.